80 SUN CARE
Sustainable trio of sensory SPF booster solutions
Chloe De Doncker, Pascale Goyat, Charlotte Vignal - Natura-Tec
With global warming and the intensification of UV exposure, sun protection has become a major public health and skin well-being issue. The evolution of consumer expectations has led to a growing demand for products that combine efficacy, safety, and environmental respect. In this context, Natura-Tec stands at the forefront of innovation by developing high-performance natural ingredients that provide protection against external aggressions while offering an optimal sensorial experience. The use of highly compatible and stable
Natura-Tec SeaBerry Blue™, Natura-Tec Abysoft™ and Natura-Tec Plantsil™ represents a significant breakthrough in sun care formulations. These natural ingredients offer a synergetic effective sustainable protection against UV and blue light exposure, while ensuring a pleasant, non-greasy application, perfectly suited to modern cosmetic formulations.
The challenges of sun protection Sunscreen products are facing increasing challenges as they aim to balance four essential factors: safety, efficacy, sustainability, and sensoriality. Safety is paramount, as consumers expect sunscreens to protect against harmful UV rays without causing adverse health effects. Formulations need to be both effective in
blocking UV radiation and safe for all skin types, including sensitive skin. Efficacy is a significant concern, with sunscreens required to offer broad- spectrum protection against UVA and UVB rays to prevent skin damage and reduce the risk of skin cancer.
45 40 35 30 25 20 15 10 5 0
As concerns over environmental impact
increase, consumers demand sunscreens that are eco-friendly, leading to a rise in the use of biodegradable ingredients. This shift towards sustainability includes avoiding harmful chemicals, which can damage coral reefs, and choosing alternatives that are safer for marine life. Sensoriality, or how a sunscreen feels on the skin, plays a crucial role in user satisfaction. Consumers seek products that are lightweight, non-greasy, and easily absorbed, without leaving a white cast or sticky residue. However, creating a sunscreen that meets all these criteria while
maintaining high performance is challenging for formulators. One solution gaining popularity is the use of
natural SPF boosters in sunscreen formulations. These are ingredients added to increase the sun protection factor (SPF) with an adding value in the product’s texture or appearance. SPF boosters improve the effectiveness of UV filters by enhancing their stability or broadening their protection against UVA and UVB rays. They optimize sunscreen’s ability to absorb
or reflect harmful radiation, improving its overall protective capacity. These boosters can also reduce the need for higher concentrations of active sunscreen agents, which can sometimes irritate the skin. Additionally, some SPF boosters can enhance water resistance, making sunscreens more durable and effective.
28% p<0.05
0% 2% Blue light 0%
42% p<0.05
2% UVA/UVB
Figure 1: Effect of Natura-Tec SeaBerry Blue at 2% on skin antioxidants production, under UV and blue light radiation
PERSONAL CARE June 2025
An enhanced antioxidant protection The microalgae active, Natura-Tec SeaBerry Blue has the ability to intrinsically strengthen the skin’s natural antioxidant defences against excessive exposure to UV radiation and blue light, as well as boosting the SPF of sunscreen formulations Combining the effectiveness of astaxanthin
from Haematococcus species, a powerful antioxidant that neutralizes free radicals and protects the skin from oxidative stress with the concentration of omega 3, 6, 9 of cranberry seed oil that are essential for maintaining optimal skin hydration and restoring its protective barrier, this active is able to stimulate the endogenous
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Variation of Antioxidant concentration (%)
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